Class 507 is terrible, and one day, after a particularly disastrous science experiment, Ms. Bryce quits and walks out in the middle of class, and the school office never finds out--at first all the fifth graders enjoy goofing off, but after a few days that starts getting boring, and the students begin to realize that school without a teacher is not easy, cooperating is difficult, and keeping a secret is harder than they thought.

Life is usually easy for popular sixth grader, Hart Evans, but when his music teacher puts him in charge of the holiday concert, Hart must use all of his leadership skills to unite the other students.

Twins Harley and Rhiannon Hummingbird travel from their Oklahoma home to their grandparents' new cabin in northern Wisconsin where they not only learn about the best techniques in having a successful day fishing, but also about teamwork and persistence.